如果需要应用进行静默安装，则需要满足一下两个条件

1  必须添加权限

2  必须是系统应用，或者系统签名应用

方法 1 通过 adb install 安装

/**

*

* @param apkFilePath 安装包路径

* @return true 、false

*/

public boolean installByADB(String apkFilePath){

boolean success = false;

if (apkFilePath == null || apkFilePath.equals("")) {return success;}

File apkFile = new File(apkFilePath);

if (!apkFile.exists() || apkFile.isDirectory()) {return success;}

String[] args = { "pm", "install", "-r", "-d", apkFilePath };

ByteArrayOutputStream eBAout = new ByteArrayOutputStream();

ByteArrayOutputStream nBAout = new ByteArrayOutputStream();

ProcessBuilder processBuilder = null;

java.lang.Process process = null;

InputStream eis = null;

InputStream is = null;

int num = 0;

byte[] buffer = new byte[1024];

try {

processBuilder = new ProcessBuilder(args);

process = processBuilder.start();

eis = process.getErrorStream();

while ((num = eis.read(buffer)) != -1) {

eBAout.write(buffer, 0, num);

}

is = process.getInputStream();

while ((num = is.read(buffer)) != -1) {

nBAout.write(buffer, 0, num);

}

String error = eBAout.toString("UTF-8");

String normal = nBAout.toString("UTF-8");

if(normal != null && normal.contains("Success")){success = true;}

} catch (IOException e) {

} catch (Exception e) {

} catch (Throwable t) {

} finally {

try {

if (null != eis) {eis.close();}

} catch (Exception e) {}

try {

if (null != is) {is.close();}

} catch (Exception e) {}

process.destroy();

}

return success;

}

方法2 通过PM安装

这个方法的前提是将framework参与编译并排列第一

/**

* @param context

* @param apkPath

*/

public void installSilentlyBYPM(Context context, String apkPath) {

if(apkPath == null || "".equals(apkPath)){return;}

File apkFile = new File(apkPath);

(!apkFile.exists() || apkFile.isDirectory()){return;}

Uri apkPackageURI = Uri.fromFile(apkFile);

int installFlags = PackageManager.INSTALL_ALL_USERS|PackageManager.INSTALL_REPLACE_EXISTING;

PackageManager pm = context.getPackageManager();

pm.installPackage(apkPackageURI, new PackageInstallObserver(){

@Override

public void onPackageInstalled(String basePackageName, int returnCode, String msg, Bundle extras){

super.onPackageInstalled(basePackageName, returnCode, msg, extras);

if(returnCode == 1){

//如果安装包的包名等于basePackageName; 则安装成功

}

}

}, installFlags, context.getPackageName());

}